Q:
Can you print PDFs from your SDK (i.e. without Acrobat reader
installed)?
Does you library support ASP.net?
A:
You can use PDFNet SDK (http://www.pdftron.com/net) to print PDFs
without Acrobat installed (or any other third party software).
You can use 'PDFNet SDK for .NET' in ASP.NET solutions. Other
platforms and programming languages are also supported.
As a starting point you may want to take a look at PrintTest sample
project (http://www.pdftron.com/net/samplecode.html#PDFPrint).